Kneading and mixing machine.



PATENTED FEB? 19, 1907.

B. F. W. WIEDA. KNBADING AND MIXING MACHINE.

APPLICATION TILED JUNE 20.1904.

2 SHEETS-SHEET 1.

THE lbRRIS PETERS c0 WASHINGTON, a. C

PATENTED FEB. 19, 1907.

E.'F. W. WIEDA. KNBADINGIAN-D MIXING MACHINE.

APPLIOATYIONI FILED JUNE 20, 1904.

2 SHEETSSHEET 2 S V iilufi Q il/ fiia WITNESSES: V S S INVENTOR,

ATTORNEYS m: NORRIS arses co., wnsummau, o c

- UNTTED STATES PATENT OFFICE.

ERNST F. W. WIEDA, OF PATERSON, NEW JERSEY, ASSIGNOR TO THE WIEDA MIXING MACHINERY (30., OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application filed June 20,1904. Serial No. 213,201.

To all whom it may concern.-

' Be it known that I, ERNST F. W. WIEDA, a citizen of the United States, residing in Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Kneading and Mixing Machines; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference .marked thereon, which form a part of this specification.

This invention relates to mixing and kneading machines; and it consists in certain improvements on machines of this nature patented to me by United-States Letters Patent No. 723,568, having for their object to make the machine peculiarly adapted for domestic and other light work. To this end my machine so structurally differs from others now in use that it is lighter in weight for a given capacity, is operated more easily and with quicker and better results, and can be taken apart for shipping and storing away in a relatively small space.

' My invention will be found fully illustrated in the accompanying drawings, wherein Figure 1 is a view showing the machine in side elevation. Fig. 2 is a view showing the machine in end elevation, a portion of the vessel in which the mixing and kneading is performed being broken away. Fig. 3 is a fragmentary view, in side elevation, of one of the sets of fingers or agitators. Fig. 3 is a horizontal transverse sectional view of said set of fingers or agitators, taken just above its axis of oscillation. Fig. 4 is a view in side elevation of another set of fingers or agitators, and Fig. 5 is a horizontal sectional view taken just below the axis of oscillation of the set of fingers or agitators illustrated in Fig. 4.

The frame or supporting structure for the moving parts and the vessel in which the mixing and kneading is performed comprises two side frames at b, secured together by braces c in such manner as to make of the whole a substantial, light, and rigid structure. In opposite portions of the tops of these side frames are formed bearing-pockets d, in which is journaled a shaft 6, having secured to it at one end a collar f and at the other end a crank g, which together prevent longitudinal movement of the shalt inits bearings. Collar f and crank g are removably secured on the shaft by set-screws h or flanges Z, which seat on the tops of the side frames (1- l), which are correspondingly inclined. here the shaft comes, the side walls of the vessel are recessed, as at m.

On the shaft are secured by set-screws n the collars 0 of sets of fingers p. Arranged to move freely on the shaft are other fingers or agitators g and 1', there being two sets of agitators 1, each of which is arranged close up against a side wall of the vessel 01 and de signed to scrape ofi' therefrom the material being mixed and kneaded. The shapes of the several fingers or agitators throughout are substantially like those shown in my application for United States Letters Patent No. 134,033, filed February 19, 1003, and the relative arrangements of the faces of said agitators or fingers are substantially the same as in that application, with the obj cct of keeping the material moving in a continuous course, so as to further the thorough mixing and kneading. One set of fingers comprises a larger number of fingers than the other sets. This enhances the agitatin effect in a localized portion of the matcriallieing operated upon, and so produces a circulation in the material. In the present instance the set of agitators having the larger number of fingers is arranged at the middle, so that the circulation is substantially the same as in my United States Patent No. 764,650. As illustrated in Figs. 4 and 5 with particular reference to the set of fingers p, no two fingers in any p air are arranged on their common support, the collar 0, to work through the same vertical planes, but instead are set in staggered formation, so as to insure every part of the material being acted upon and the circulating effect further enhanced.

The sets of agitators 1 and r are formed with integral upwardly-projecting arms .9 25, respectively, the same being penetrated by tiebolts u e, which act to secure the two sets of fingersor agitators rigidly together, so that they will move as a unitary structure. In order to keep the set of agitators 9 against lateral movement on the shaft e, spacingsleeves w are interposed between the arms 8 and t on the tie-bolts o.

00 is a crank-shaft which is journaled in arms y, projecting from and forming integral parts of the 'side frames at Z). This shaft is formed, midway between the side frames, with a U-shaped or double crank z, and it has fixed to one end a crank 1 and at the other end a gear 2, which keep the shaft from lengthwise movement. The crank 1 is dis- -posed in diametrically opposite relation to the crank .2 and carries a pin 3, which forms a pivotal connection form one end of a pitman 4, whose other end has a pivotal connection on a pin 5, carried bythe free end of the crank g. The bearing portion 6 of the crank 2 receives a separable bearing 7 at one end of a pitrnan 8, whose other end has a pivotal connection with an upward extension 9 of the arm t on a pin 10, carried by said arm. In view of the foregoing it will be observed that when the crank-shaft 0c is rotated it acts, through its cranks z and 1 and the pitmen 4 and 8, to oscillate the shaft 6 and the set of fingers or agitators carried thereby and the sets of agitators g and r in relatively opposite directions.

11 is a stub-shaft, which is mounted in the side frame I) and has a shoulder 12, taking against the outside of said side frame, and a nut 13, which coacts with said shoulder to clamp the stub-shaft in place. On this stubshaft is journaled a sleeve 14, formed with teeth 15, which intermesh with the teeth of the gear 2. This sleeve is prevented from lateral displacement by a washer 16 and a pin 17, which holds the washer in place on the shaft. The sleeve forms the bearing for a balance-wheel 18, which is secured on the sleeve by a set-screw 19 and which carries a handle 20. I

It will be understood that the machine is operated in order to oscillate the fingers, as above described, by rotating the. balancewheel 18, so as to rotate therefrom the gear 2.

In order to remove the dough or other material after it has been mixed and kneaded in the machine, the pitmen 4 and 8 are detached from the pins 5 and 10, (after first removing the cotters 21,) whereupon the sets of agitators may be removed from the vessel, so that the vessel itself can be lifted out of the frame to be thereupon inverted. The agitators are raised as a body, together with the shaft 6, by grasping the connecting structure comprising arms 8 and t and rods wand 42. Thereupon the fingers may be cleared of any adhering dough by oscillating the agitators p from crank g with one hand, while the other hand grasps the connecting structure just referred to. By arranging the shaft 6, so that it rests in pockets which open laterally (as shown and described herein upwardly) with reference to said shaft the agitators are capable of being conveniently lifted as a body out of the vessel 11, and by having the shaft extend over the top of the vessel and, moreover, arranged to seat in pockets in the vessel corre sponding with those in the frame the proper disposition of the vessel in the frame is maintained at all times while the parts are as-. sembled.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of a frame, a vessel for receiving the material to be operated upon removably arranged in said frame, a set of agitators, an axial support therefor, said frame having pockets opening laterally with reference to said axial support and said axial support being journaled in said pockets, a shaft j ournaled in said frame, and operative connecting means between said shaft and said agitators whereby to oscillate the agitators, substantially as described.

2. The combination of a frame, a vessel for receiving the material to be operated upon removably arranged in said frame, a set of agitators, an axial support therefor, said frame having pockets open ng laterally with reference to said axial support and said axial support being journaled in said pockets, a shaft in said frame, and operative connecting means between said shaft and said axial support whereby to oscillate the agitators, said agitators being fixed to oscillate with said axial support, substantially as described.

3. The combination of a frame, a vessel for receiving the material to be operated upon removably arranged in said frame, said frame having upwardly-opening pockets in the top portion thereof, a shaft journaled in said pockets and extending over the vessel, agitators arranged to oscillate on said shaft, another shaft journaled in said frame, and operative connecting means between said other shaft and the agitators, substantially as described.

4. The combination of a frame, a vessel for receiving the material to be operated upon removably arranged in said frame, said frame having upwardly-opening pockets in the top portion thereof, a shaft journaled in said pockets and extending over the vessel, agitators fixed on said shaft, another shaft journaled in said frame, and operative connecting means between said shafts whereby to oscillate the agitators from said last-named shaft, substantially as described.

5. The combination of a fiame, a vessel having supporting-flanges resting on said frame, a shaft removably journaled in said frame and extending over the Vessel, the vessel-supper ting surfaces of said frame, and the flanges of said vessel being correspondingly radially arranged with reference to the shaft, and a set of agitators carried by said shaft, substantially as described.

6. The combination of a frame, a horizontal shaft journaled in said frame, said frame having supporting portions on both sides of said shaft inclined downwardly toward the same, a vessel having an arc-shaped bottom Wall and two side walls, the upper edges of said side Walls being formed to coincide with the inclined supporting portions of said frame and having flanges adapted to rest on said supporting portions, and agitators carried by said shaft, substantially as described.

7. The combination of a frame, the same having pockets formed in its top portion, a vessel for receiving the material to be oper ated upon removably arranged in said frame and also having pockets in its top portion coinciding With the pockets of the frame, a set of agitators, and an axial support therefor adapted to be received by said pockets of the frame and the vessel and j ournaled in the former, substantially as described.

8. In a kneading and mixing machine having aplurality of oscillatory agitators, a set of fingers or agitators having a common axial support and projecting therefrom in different radial planes, the one or ones in one radial plane being offset longitudinally of the oscillating axis with reference to the other or others, substantially as described.

9. In a kneading and mixing machine, several sets of oscillatory agitators having a common axis of movement, one set being located substantially mid ay bot een, and comprising more agitators than, the others, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 18th day of June, 1904:.

ERNST F. W'IEDA. W'itnesses JOHN STEWARD, ROBERT J. PoLLi'rr. 

